acid-base equilibrium(n = noun.process) acid-base balance - (physiology) the normal equilibrium between acids and alkalis in the body; "with a normal acid-base balance in the body the blood is slightly alkaline"
is a kind of chemical equilibrium, equilibrium

acid-base balance, acid-base indicator, chemical equilibrium, equilibrium, equilibrium constant, equilibrium law, law of chemical equilibrium, nash equilibrium, punctuated equilibrium, sense of equilibrium, theory of punctuated equilibrium, thermal equilibrium, thermodynamics of equilibrium